Accession Number : AD0010807


Title :   TESTS OF ARMING WIRES AN-M6A2, MK 1 AND MK 3


Descriptive Note : Final rept.


Corporate Author : NAVAL PROVING GROUND DAHLGREN VA


Personal Author(s) : GODFREY, J E


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/010807.pdf


Report Date : 22 May 1953


Pagination or Media Count : 21


Abstract : Tests were conducted to determine the arming-wire rivet-head breaking loads, with arming wires subjected to static loads and 5-lb loads dropped 20 in. All the rivet heads were essentially similar, and the arming-wire strength was within design specifications except for failures by coil spreading and unwinding in the Mk 3 assemblies. An AN-M6A2 rivet head which was rotated with an electric drill under hand tension showed wear and pulled through the coil in 20 min. A similar failure occurred after a 90 min free suspension in a 450-knot air stream. However, the Mk3 arming wire showed little rivet-head wear under the same conditions. The AN-M6A2 arming wire was placed in the tail-fuze position and subjected to a 450-knot air stream for 68 min. None of the components showed wear or weakening. Reported malfunctions were attributed to wire whipping after bomb releases. Tabulated test data and photographs are appended.


Descriptors :   *ARMING DEVICES , WIRE , STATIC LOADS , TENSION , RELEASE , ELECTRIC POWER , MALFUNCTIONS , BOMBS , HANDS , DRILLS , EXPERIMENTAL DATA , TABLES(DATA)


Subject Categories : Ammunition and Explosives


Distribution Statement : APPROVED FOR PUBLIC RELEASE